For Black Friday, I would only like ATA promise. A promise to ensure that they will try to bridge the gap between large and small. I know games have tiers, that's inevitable, it's what keeps trash from treasure.
Unlimited crystals won't do anything but pad whales and people with saved up crystals.
I suggest free HTE for 12 hours.
I know Black Friday is "discounts" but I think people would rather have to not buy anything. Maybe toss in buildings/upgrades are 25% off, 50% seems too high. But I think any reward, or discount you give us is good enough. Black Friday isn't even a holiday yet you're willing to help give back to the community.
Thumbs up ATA!